Air-pump and valve therefor.



J. KEPPBL.

AIR PUMP AND VALVE THEREFOR.

APPLICATION FILED JULY 21, 1913.

Patented 99 114.

J. KEPPEL. AIR PUMP AND VALVE THEREFOR.

APPLICATION FILED JULY 21, 1913.

1,1 1 1,906. Patented 891111.29, 1914. 2, SHEETS-SHEET 2.

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invented new and. useful li'iiprovemente in Airumps and Valves 'lfhereii'oi' of which the chewing is specification This icventlcn relates Lo valve mechanism, and has for its object to pioviile nevel liiJilShl'liClllOli. of valve for use particularly in air pumpsc iiltl'mugh net limited to such application.

in the censtgruction cf the valve iii ovei'coiiie the objecl'ions; incident to the u of such \alvee as have come. more or iiinto (.zon'mierciel use in connection with air pumps, and air ccm ii-i-zseors, the pi-iz'ii'tipel mien to such valves being thee after h liil'le while they fail to seal; accurately and PQI'l'lllfi the leakage of air, and after use for ci-t time, the pounding cf the mm agein its causes it to wear 1. me i piclly chat soon becomes iinoperntive and a new valve must be subs-limited, 'liui I such wearing iLiELy oi the valves cues chem. to impair the so that the luleir have to be frequemiy 1' ounci.

According to my invention i employ a 'elza'bively thick valve cf the disk type which guided to inove accurately chi-o gh d, cle incd plane so that it will alive elviiiie lihe sent llatwise and thus evoicl (lei 'I';, while at l 10 same ti'i'ne minimizing the eaf. The valve has only a, slight range of movement; but the resistance to the escape of air which would follow from restricting the el'lfective area of the valve chamber, is compensated for by so shaping thevillve and its seat on the outlet side as to permit the ready How of air past the valve.

in the accompanying drawings-higure 1 is :1, view partly in elevation anal partly in mi icel section illustrating a pump having my improved valve mechanism: applied thereto; Fig. 2 is a vertical. sectional view on an enlarged scale illustrating a poi'tion the pump cylinder with a valve and its CGLQIIGClLlDg per-ts attached thereto, the valve being shown 1n the open position; f'gi 3 is sectional view on the line 3---3 of l! v a view in broken sectional elev 1 of the valve on the opposite side of cyhmler to that of Fig. S2, iihe valve hen shown in the closed position; iii 5 a, sectional View on the 1111c 5--5 c Referring now to the (h'e'e'ings, e mi meiiil 1 imlice lace rm mouiiieci e il 'iveh, H

ough the a cross heed ciprecn (5 v The mini index I.

.me in which Q'Which, I :3 reciprccwtcs 4 93c .iiectec 50 when i i :11 mg :2 piston 6.

he pump cylencl a bottom 9, the vii-21h a ezuil 11;; he 10' melon reel 5 WOIJlIS. The 5 1;. cpesiize ends with iqglel'ilillfll to ircvide poi-ts 1.2.

screw l 1 iii. ji 'lfi cuter poi-tine to receive e11 1 i a e screw threaded 7Q ice valves empicyeil the have 0 Le Alp-ll, n

he port lie Sui'icii,

U ennulni. member 18 is; 35

provided on YES N ch11 i which is provided w iem bl: 7 four equally space. grooves .25 which eXu-eni'l. 'liem near the periphery of the to the circiim'fer- 9Q ence of an aperture formed in the rear wail of the weir-" xiieinheir 18. The space, between the valve seats 3 inc efi'orcls an. annular ciigimbei". 27 cr still the valve chamber proper; and. projecting: fnco this 5 elm-mile? from the face of the ve .ve sea-1t are preferably,four pins 28, ezich oi? which is lo mixed intermediate two grooves The pins 28 extend nearly to the valve seat 23 encl form guides fez? diskvziivc 29 formed in ii and h equi-(listc i live 29. The 1130 mm; a Cll'Llllill place of portion cul, aw; at point L'UlllMl its ClLCllIl'l circular. i'eeesses 30 iute 'oi'igiies ill, the recesses 30 pee ticn with the grooves .25, icitm'ccl to re" coincidii zincl lzhe ceive the A lively and col-res ondinv valves 14 and 17 will be P11 5128 prevenbnll. comic of thevalve and insure that it will sear atwise, thus, not only, as stat prevcntin denting of the see; 523, owl;- 1 an ng :ilso rotational or leizcroifmovement oi? the valve, with consecpxenifvreer of the sect. nrlaher, by this construction, as every partxof the valve always strikes the corresponding port of the seat 23, any weer between them is mutual as to area and confiormstion, and t ercfore an uneven seating of the valve Whichwould permit ieskare of air. While the like ad; vantages app y to the action of the valve on; fiche seat 24, they are no; so important in this instance except as thy tend toprevent wear of rho valve. The correspondlng'velves 15 end 17 are connected by a pipe 32 centrally of which is connect-ed an ,ihboke pipe 33, and valves 1% and 16 are connected by e simllar nested-en outlet pipe 35 which will lead to rho container in which the air is to be stored under pressure. v

Tbs notion of the pump as a whole is similer'to that of an ordinary double acting pump, ond'neod not be described in detail. Snflice ii? to say that the valves are automatic in action, and that as the piston ascends the opened and the valvcslS and 16 closed, and when the piston descends the valves 14 and 17 will be closed, and the valves 15 and 16 opened. Thus, in each movement of the piston air Will be drawn into the cylinder through the-intake quick oczion or the has no condone to cau e pipeB, centrally of which is con-' 33 and be discharged through one or the other of the valves 14, 16, through the outlet pipe 35.

I claim:

1. A valve for air pumps comprising :1 casing nii'ordin a valve chamber, av diskvalvc mounted in said chamber, one side of said chamber providing a, lint scat for the ,valve toprevent the escape of air and the other side being provided on its ace with grooves, said valve being provided. with peripheral recesses corresponding in position with said rooves.

2.1%. valve or air pumps comprising :1, casing affording a valve chamber, a series of pins projecting into said chamber, a diskvalve located in said chamber and mounted to move on said pins and providcdqvith erip'heral recesses, one wall of said 011* ilie providini; a flat seat for the valve, and the other W: 1 corresponding in position with the recesses of the valve to permit the passage of air around the valve.

3. A valve for air pumps comprisin :r casing aifordin a valve chamber, a d1slrvalve mounted in said chamber, one side of said chamber providing a fiat seat for the valve to prevent the esca c of air, and the other side being provide grooves, said valve being provided with passages corresponding in position with said grooves.

In testimony whereof, I have hereunto set nesses. JESSE KEPPLL.

VVitnes'ses BRUCE S. ELLIOTT,

T1105. H. KEPPEL.

being provided with grooves on its face wifih my hand in presence of two subscribing Wli;-

lfi 

